What are climate and topographical factors that intensify air pollution?

Geography help please.. i need to catch up?

• 15. What does the acronym NAFTA mean? A) North American Free Tariff Agreement B) North Atlantic Free Trade Agreement C) North American Free Trade Agreement D) North Atlantic Full Trade Agreement 16. NAFTA countries include all of the following EXCEPT: A) Spain B) Mexico C) Canada D) the United States 17. Which of the following is a direct result of NAFTA? A) increase in unemployment in Mexico B) increase in manufacturing jobs in Mexico C) decrease in pollution problems in Mexico D) decrease in trade between the United States and Mexico 18. NAFTA __________. A) promotes trade among Canada, Mexico, and the United States B) limits immigration and reduces the number of foreign students in America C) erects trade barriers among the member nations D) promotes free trade with the European Union 19. Which of the following benefits did Mexico bring to NAFTA? A) increased the market size for United States and Canada B) increased labor costs related to the production of goods and services C) provided a highly trained work force D) provided advanced factory equipment technology 20. What is the main source of pollutants in Mexico City? A) Insecticides and herbicides B) Incineration of garbage C) Burning of fossil fuels in homes D) Emissions from cars and trucks 21. What is the main geographic factor that leads to the pollution problem in Mexico City? A) Inland rivers carry pollution into the drinking water. B) The desert climate in the region. C) The city is largely surrounded by mountains. D) Lack of plants due to urbanization. 22. What are the strategies the Mexican City government has put into place to try to solve the pollution problem? A) Use of public transportation and car pooling B) Use of cleaner burning fuel C) Banning certain cars for streets on a given day each week D) All of the above 23. All of the following are true about air pollution in Mexico City EXCEPT: A) Soil erosion and forest fires are major contributing factors. B) The location of Mexico City further aggravates the problem. C) Mexico City has one of the most severe cases of atmospheric pollution in the world. D) Mexico City does not have strategies to control pollution.

• Answer:

  15 - B) North Atlantic Free Trade Agreement 16 - A) Spain 18 - A) promotes trade among Canada, Mexico, and the United States 20 - D) Emissions from cars and trucks (I think) 21. A) Inland rivers carry pollution into the drinking water. (pretty sure)